57816545877 has 80 divisors (see below), whose sum is σ = 90158745600. Its totient is φ = 36883550880.

The previous prime is 57816545873. The next prime is 57816545903. The reversal of 57816545877 is 77854561875.

57816545877 is a `hidden beast` number, since 5 + 7 + 8 + 1 + 6 + 545 + 87 + 7 = 666.

It is not a de Polignac number, because 57816545877 - 2² = 57816545873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57816545873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 137986774 + ... + 137987192.

It is an arithmetic number, because the mean of its divisors is an integer number (1126984320).

Almost surely, 2^57816545877 is an apocalyptic number.

It is an amenable number.

57816545877 is a deficient number, since it is larger than the sum of its proper divisors (32342199723).

57816545877 is a wasteful number, since it uses less digits than its factorization.

57816545877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 939 counting only the distinct ones).

The product of its digits is 65856000, while the sum is 63.

The spelling of 57816545877 in words is "fifty-seven billion, eight hundred sixteen million, five hundred forty-five thousand, eight hundred seventy-seven".